I was in Calgary last week and had some family who suggested this restaurant. It's located in the Kensington area so very nice vibe though parking can be challenging.
I really enjoyed the food here. It was refreshing to have Mexican food in the middle of Calgary. The vibe of the place was great and the place was busy. I had the fish tacos and it tasted fresh and authentic. The free nachos with their salsa had a good kick to it. We also ordered the quesadilla and the patiacitas which was a nice cheesy snack.
I do recommend this place but perhaps also good to share your meal because the portions are big. The price is a bit higher than other Mexican joints I've been to as well.
Here's my Vlog of my recent visit to Julio's Barrio
https://youtu.be/YqsJG5G_1u8